Zirconsulphate
硫锆石
🗣️ 情景例句
Say good-bye to Richard.
替我向Richard说声再见。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
I want to take some books to the classroom. Could you help me, please?
我想把一些书拿到教室里，你能帮个忙吗？